Malicious PDF — malware analysis report

Static analysis result for SHA-256 cd7fdc11f3eefd6b…

MALICIOUS

PDF

47.1 KB Created: 2020-10-11 08:04:21 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 306d24aec6714ecbc08fd2d68e8d7378 SHA-1: 51f53cd04c47700c93883a9f12de07bf1f69139f SHA-256: cd7fdc11f3eefd6bfe9ee278a7d0b843fac7d5302295ab6f4c6f3c44dfc846e9
202 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 6

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Urgency / deadline lure low SE_URGENCY_LURE
    Document contains urgency or deadline language ('account will be terminated', 'action required within 24 hours', etc.) — useful context, but low-signal without other findings
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gettraff.ru/strik?keyword=5e+druid+spell+sheet In PDF document text
    • http://files.lindseyyok.com/uploads/1/3/0/7/130740443/lasogeviroxudelur.pdfIn PDF document text
    • http://semut.angryorange.org/uploads/1/3/1/0/131071297/kujoripeloza.pdfIn PDF document text
    • http://tufemo.jestek.net/uploads/1/3/1/3/131384013/zikenaxazowug.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://cdn.shopify.com/s/files/1/0433/9879/1322/files/assassins_creed_forsaken_audiobook.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0484/1970/0904/files/18578982389.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/0898/1153/files/92904967631.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0438/1055/4013/files/tracking_deer_signs.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0499/5920/7080/files/lemovukeweborezev.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0430/5797/1354/files/40051770889.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0432/9101/7374/files/70147171124.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0435/5427/5479/files/6_month_bible_reading_plan_chronological.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/20f0ca62-239a-465e-8aa0-a9993bb9250b/tebuvupevutowopa.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/c18316cd-f97a-4b62-a2d5-5482cf9ae5d8/nudokirelasibubovegopul.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/185e2d77-faaf-4130-aa3e-2e867f550e5b/84914102241.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eb60ea9c-1c66-40f2-8414-c2554e771a8a/gefumenulegufureko.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00007c3f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x7C3F 4868 bytes
SHA-256: 7195cd6fd6d261227606df4a14c6f80e594d4310f87a6cbd4cb264a1a0fd5950
font_01_sfnt_off00008cc3.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8CC3 10220 bytes
SHA-256: 4b4ba829f351a4e9b88428ab9bb800d1d8fd14d86793fe632dae7b70902c79b6

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